Gun with railway gun-carriage



R. LORENZ. GUN WITH RAILWAY GUNCARRIAGE.

APPLICATION FILED SEPT'8 1920. 7 1,360,550. 7 Patented Nov. 30, 1920.

2 SHEETS-SHEET R. LORENZ.

GUN WITH RAILWAY GUN CARRIAGE.

APPLICATION FILED SEPT- 8, I920. 1,360,550, Patented Nov. 30, 1920.

2 SHEETS-SHEET 2- Fig.4.

ca (5 5/ al /w I 4/ UEE STATES.

RUDOLF LORENZ, or ESSEN, GERIVZAIG'Y, ASSIGNOR 'ro FRIED. KRUPI' AKTIENGESELL- SCHAFT, or E$SENON-THE-BUHR, GERMANY.

GUN WITH RAILWAY GUN-CARRI AGE.

Specification of Letters Patent.

' Patented Nov. 30, 1920.

Application filed September 8, 1920. Serial No. 408,981.

tain new and useful Improvements in Guns with Railway Gun-Carriages, of which the of the gun in the transport position.

This invention relates to guns with a rail- 7 way gun carriage, and the object of the invention is to devise an arrangement which enables the frame of the gun carriage to be effectively supported when the gun is fired and which does not weight the gun carriage during transport.

The invention will be described with reference to the accompanying drawings in which Figure l s a diagrammatic side'elevation of the gun in the transport position,

Fig. 2 is a portion of Fig. lfon a larger scale, and

Fig. 3 is a View corresponding to Fig. 2 with altered details, partially in section.

Fig. 4: shows on a still larger scale'the portion of the supporting carriage shown in Fig. 2 in the firing position, partially in side elevation and partially in section, and

Fig. 5 is a section on the line 55 of Fig.

The'arrangement shown in Figs. 1, 2, 4 and 5 will be described first. I r

The railway gun carriage has'a frame A, which is carried on two bogies 'B, B (see Fig. 1). Between these two bogies is arranged a carriage C (see Fig. 1) which is coupled to the front bogie by a connecting rod D or the like. The frame A of the gun carriage canbe engaged with the frame C (see Figs. 2, 4: and 5) of the carriage by means of two jacks E, which are adjustable vertically and relatively to the frame A. For this purpose each jack E is provided with a screw thread 6 (Fig. 5) which engages in a female screw thread a in a box-shaped cross piece a of the frame A. Each jack E is driven by means of a pair of bevel wheels e e mounted on the frame A and adapted to be rotated by means of a hand wheel 6 Between the frame C and the wheel axles C (see Figs. 2 and 4) of the carriage C supporting springs F are inserted. Two

thrust. blocks Hintended to rest on therails G' (see Figs. 4 and 5), are movably connected to the frame C by vertical screw spindles 5 (see Figs. 4 and 5). Each screw spindle J engages in a female screw thread in a bevel wheel i .which.'is prevented from moving vertically by stops 0 on the frame The bevel wheel 1: gears into a bevel wheel 71 the shaft i of which is mounted in the frame C and carries a hand wheel '5'. Through a head i which forms the lower end' of the screw spindle J is passed a leaf spring (see Figs. 4 and 5) the ends of which engage'in guides 71, (see Fig. at) in the pressure block H. On the pressure block are provided abutments 72. for the heads i of the spindles J against which the spindles can be supported after corresponding fiexion of the springs K.

TZVhile the gun is being transported the pressure blocks II are lifted off the rails (see Figs. 1 and 2), and the jacks E are so adjusted that clearance is left between their lower ends and the frame C of the carriage C. The carriage C therefore runs idly. When the gun is'to be transferred into the V firing position, the pressure blocks are let down so far by rotating the hand wheels 2" that the said pressure blocks rest on the rails Gr. Between the heads 71 of the spindles J and the abutments 71. clearance is left. The jacks E are then also set up on the frame C of the carriage C by rotating the hand wheels e (see Figs. at and 5). VVhen the gun is fired the bogies B B of the railway carriage take up a portion of the recoil exerted on the frame A of the gun carriage as the frame can bend to the extent to which the frame C of the carriage C yields against the action of the-springs F and Ii. This movement of the frame C ceases immediately the spindles J come into contact with the abutments 71, on the pressure blocks H. From this instant the frame of the gun carriage is rigid? supported against the pressure blocks. 11 this way the recoil is transi porting carriage takes place, Whenthe gun is fired onlyafter the springs N are stressed.

for connecting said frame centrally V to said supporting unit so that the resulting possesses the important advantage that its weight does not exert any bending strains on the frame of the gun carriage'anddoes not weight the bogies of therailway =gun carriage during transport. V

The construction shown in Fig. 3 merely differs from the one described in that the screw spindles J are not attached to the pressure blocks by the aid of springs K but to the pressure blocks by bolts (M). In place thereof there are mounted-on the frame C of the supporting carriage springs (N) 'whieh form the abutments ,for the j'ac'ks E.

In the firing position'of the gun the jacks E "are screwed down sofar'that they just bear upon the springs'N. In consequence thereof,

an appreciable transinission of pressure by the frame A. of the'gun carr age to'the sup- By these means, a favorable distribution of 'pressure on the bogiesB B andthe carriage C is insured in this construction also. r\ similar distribution ofp'ressure could-also be obtained'without the interposition of springs 'by allowing a certain amount of' play between the jacks E'and their 'abutments"on the carriage C when'the gun is in the firing position.

Claims: 1. The ooniblnatlon wlth a ra'llwayfgun and carriage therefor, of a separate center supporting unit, and means whereby said unit runs idly with said gun carriage "when the gun is in transport.

"2. r\ railway gun, 'which comprises a 'carriage,"a frame supporting said'gun, an independent mobile center supporting unit, and

means whereby the recoil, whenthe 'glin' is fired, is distributed between the carriage and the supporting unit. 7

Arail'way gun and carriage, comprising 'two set's 'of bogies,a frame s'upporte' donsaid bogies, a separate supporting unit, 'an" bogies and the separate unit. 7

gun, a mobile supporting unit, sai adapted to'en'gage said frame for support thereof, 'said 'unit embodying rail-engaging shoes, and means for projecting said'shoes shock of the recoil is distributed between the 4:. A railway gun and carriage therefor, which comprises sets of bogies, a frame supporting the gun and carried by said bogies, a separate supporting unit adapted to be positioned centrally of the frame, means carried by said unit for supporting it upon the rails of a railway, means for connecting the frame to said separate unit for support thereon, and resilient means within said separate unit whereby the recoil of the gun is first transmitted to the carriage bogies and then f to the separatesupport ing unit;

5. A railway gunand'carriage therefor,

which comprises two 'sets of bogies, a frame supporting 'said gun, a mobile supporting unit, said mobile unit adapted to'be placed in a supportingposition with respect to the frame, the supporting contact being such "6 railway gun and carriage therefor, whlch comprises two sets of-bogies, a frame lnounted on said bogies and carryln said unit to operative position. V

7. A railway gun and carriage therefor,

which comprises two sets of bogies, a frame lnounted on said bogies and carrying said "gun, a mobile supporting unit, said unit "a'daptecl'to engage said frame for support thereof, said unit embodying rail-engaging' wheels, Tail-engaging shoes, and resilient -means disposed between the wheels and shoes "and the mobile'unit r The foregoing specification :R LORENZ.

In presence of H ANs VGGITSMANN, JosEr "Wmvrz.

. signed at Essen; GermanmthisflOthflay 016 May, 1920.

that the recoil is transmitted to the mobile unit only after a flexing of the frame. 

